package cn.zzuli.springcloud.controller;

import cn.zzuli.commons.entity.CommonResult;
import cn.zzuli.commons.entity.Payment;
import cn.zzuli.springcloud.lb.LoadBalancer;
import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import javax.annotation.Resource;
import java.net.URI;
import java.util.List;

/**
 * @Date: 2020/12/5 16:16
 * @Author: 绯色下午茶
 * @Description:
 */
@RestController
@Slf4j
@RequestMapping("/consumer/")
public class OrderController {
    public static final String PAYMENT_URL = "http://CLOUD-GATEWAY";
    @Resource
    RestTemplate restTemplate;
    @Resource
    DiscoveryClient discoveryClient;
    @Resource
    private LoadBalancer loadBalancer;

    @GetMapping("/payment")
    public CommonResult<Payment> create(Payment payment){
        return restTemplate.postForObject(PAYMENT_URL+"/provider/payment",payment, CommonResult.class);
    }

    @GetMapping("/payment/{id}")
    public CommonResult<Payment> create(@PathVariable("id") Long id){
        return restTemplate.getForObject(PAYMENT_URL+"/provider/payment/"+id, CommonResult.class);
    }

    @GetMapping("/payment/lb")
    public String getpaymentLB(){
        List<ServiceInstance>instances = discoveryClient.getInstances("PROVIDER-PAYMENT");
        if (instances==null||instances.size()<=0){
            return "error";
        }
        ServiceInstance serviceInstance = loadBalancer.instances(instances);
        URI uri = serviceInstance.getUri();
        return restTemplate.getForObject(uri+"/provider/payment/lb",String.class);
    }

}
